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MegaRAID SAS Software User Guide Chapter 2: Introduction to RAID
| RAID Levels
Figure 13: RAID 50 Level Virtual Drive
2.5.10 RAID 60 RAID 60 provides the features of both RAID 0 and RAID 6, and includes both parity and
disk striping across multiple drive groups. RAID 6 supports two independent parity
blocks per stripe. A RAID 60 virtual drive can survive the loss of two drives in each of the
RAID 6 sets without losing data. RAID 60 is best implemented on two RAID 6 drive
groups with data striped across both drive groups.
RAID 60 breaks up data into smaller blocks, and then stripes the blocks of data to each
RAID 6 disk set. RAID 6 breaks up data into smaller blocks, calculates parity by
performing an exclusive-or on the blocks and then writes the blocks of data and parity
to each drive in the drive group. The size of each block is determined by the stripe size
parameter, which is set during the creation of the RAID set.
Segment 1
Segment 2
Segment 5
Segment 6
RAID 0
RAID 50
(Segment 1,2)
Segment 3
Segment 4
Segment 8
Segment 7
Segment 9
Segment 10
Segment 11
Segment 12
(Segment 5,6)
(Segment 9,10)
(Segment 11,12)
(Segment 7,8)
(Segment 3,4)
RAID 5
RAID 5
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